Guth DeConzo Construction Management, Inc

What Guth DeConzo Construction Management, Inc does

Grant & Vine is a privately held engineering and construction management firm founded in 1991 (as Guth DeConzo Construction Management, Inc.) and headquartered in Troy, New York, with additional offices in Lake Success and New York City. The firm operates two integrated service lines: Engineering Services, providing MEP/FP (Mechanical, Electrical, Plumbing/Fire Protection) design, energy master planning, commissioning, and indoor air quality consulting; and Construction Management Services, overseeing technically complex and logistically challenging projects from initiation through construction completion, with approximately 75% of CM engagements delivered on a services-only basis. Core technology expertise centers on energy efficiency engineering, combined heat and power (CHP) systems, Battery Electric Storage Systems (BESS), microgrid design, and electric bus charging infrastructure, where the firm acts as Design-Build Manager integrating ABB, Heliox, Siemens, and INIT systems across multi-phase NYCT depot electrification programs.

The firm serves primarily public-sector clients in the Northeast — government agencies, transit authorities, healthcare systems (notably NYC Health & Hospitals Corporation), and SUNY institutions — through a relationship-driven enterprise sales motion secured via procurement processes and direct client engagement. Projects are custom-quoted on a multi-year basis, with individual contract values ranging from approximately $5M (Broome County Transit) to $450M (NYS OGS Infrastructure Upgrades program encompassing ~20 projects). Revenue is generated entirely through professional services fees; pricing is project-based with no standardized tiers. The firm has completed over 5,000 projects across 25+ states and the Caribbean since founding, with a staff of 60+ professionals, many possessing 35-40 years of industry experience. A 2025 rebrand from Guth DeConzo to Grant & Vine reflects continued evolution while maintaining leadership continuity under Principal Jeremy McDonald, P.E.

Name

Guth DeConzo Construction Management, Inc

Legal name

Grant & Vine

Website

https://guthdeconzocm.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

11–50 employees

Short description

Grant & Vine is a New York-based engineering and construction management firm serving public-sector, healthcare, higher education, and transit clients. It specializes in MEP/FP design, energy efficiency, eBus charging infrastructure, BESS/microgrids, and CHP systems, with 60+ professionals and over 5,000 completed projects since 1991.

Ownership category

akta.pro rank

Product category

Construction Management and Engineering Services

SIC

Services-Engineering Services (8711), Heavy Construction Other Than Bldg Const - Contractors (1600), General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro industry

PRIMARYIMAFAAAF

Construction Program Management (Multi-site/Portfolio)

Industrials, Manufacturing & Construction/Construction & Civil Engineering/General Contracting & Construction Management

SECONDARYEUAMAFAJ

Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Renewable EPC & Construction (Balance of Plant)

SECONDARYEUAEADAG

Overhead & Underground Collection System Construction (MV/HV Lines, Duct Banks)

Energy, Utilities & Environment/Energy Infrastructure & Services (EPC, O&M, Field Services)/Renewable Balance-of-Plant EPC (Wind/Solar/Hydro)

Keywords

• Construction management services
• MEP engineering design
• Building commissioning services
• Energy efficiency consulting
• Infrastructure project management

Headquarters

HQ city

Troy

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Engineering Consulting Services: Engineering consulting services for MEP/FP design, energy efficiency, tax abatement applications, indoor air quality, and commissioning. Services provided to public sector institutions, municipalities, developers, and private corporations.
2. Construction Management Services: Construction management services for technically complex and logistically challenging projects. Services provided from project initiation through design completion, procurement, and construction. Over 75% of CM projects are for CM Services-only clientele.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Grant & Vine (formerly Guth DeConzo Construction Management, Inc) is an engineering and construction management firm that delivers MEP/FP design, energy efficiency, commissioning, and owner's project management services. The firm specializes in complex infrastructure projects including eBus charging facilities, battery energy storage systems (BESS), microgrids, and combined heat and power (CHP) systems for public-sector and institutional clients. With 60+ professionals and more than 5,000 completed projects across 25+ states and the Caribbean, the firm provides end-to-end technical oversight from planning through commissioning.

Product overview

Grant & Vine is a construction management and engineering firm (formerly Guth DeConzo) offering two integrated service lines: Engineering Services and Construction Management Services. The Engineering Services division provides MEP/FP design, energy efficiency consulting, commissioning, and indoor air quality solutions. The Construction Management Services division oversees project execution from initiation through completion, managing technically complex and logistically challenging projects safely, on time, and on budget. The two divisions work in coordination, with over 75% of Construction Management projects being services-only engagements. The company also specializes in eBus charging infrastructure projects, managing multiple phases of charging system installations across New York City Transit and other transit authorities.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 5,000+ successful projects completed since 1991
• +3 more outcomes

Named customers8 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

14 partnerships are on record, tiered supporting and core.

• STVsupportingTechnology or IntegrationDesign consultant for eBus Charging Infrastructure Project Phase 2. STV provides engineering design services as part of the design-build team.
• MP EngineeringsupportingTechnology or IntegrationDesign consultant for eBus Charging Infrastructure Project Phase 2, providing engineering design expertise.
• ABBcoreTechnology or IntegrationCharging equipment technology provider for eBus charging infrastructure projects. ABB provides overhead pantograph charging systems for NYCT bus depot installations.
• HelioxcoreTechnology or IntegrationCharging equipment technology provider for eBus charging infrastructure projects. Heliox provides overhead pantograph bus charging systems for NYCT transit projects.
• SiemenscoreTechnology or IntegrationEquipment provider for eBus Phase 1 project and technology partner for combined heat and power systems. Siemens provides charging systems and 4MW reciprocating engines.
• INITcoreTechnology or IntegrationCharge management software provider for eBus charging infrastructure projects, enabling management and optimization of charging operations.
• ShunksupportingTechnology or IntegrationSubcontractor/supplier for eBus charging infrastructure projects providing overhead charging system components.
• StemmannsupportingTechnology or IntegrationSubcontractor/supplier for eBus charging infrastructure projects providing cable management and charging components.
• Weston and SampsonsupportingImplementation/ SI/ Consulting PartnerArchitect/Engineer for Lincoln Park Pool Reconstruction project, providing design services for the pool facility upgrade.
• Jersen ConstructionsupportingImplementation/ SI/ Consulting PartnerGeneral contractor for Lincoln Park Pool Reconstruction project.
• Savin EngineeringsupportingImplementation/ SI/ Consulting PartnerEngineering consultant for Bellevue Hospital Combined Heat & Power project.
• PWI EngineeringsupportingImplementation/ SI/ Consulting PartnerEngineering consultant for Bellevue Hospital Combined Heat & Power project.
• Walsh ConstructionsupportingImplementation/ SI/ Consulting PartnerGeneral contractor for Stony Brook University campus-wide infrastructure upgrades project.
• NYC DCAScoreOthersClient/owner representative for NYPD facility deep energy upgrades. NYC Department of Citywide Administrative Services oversees city infrastructure projects.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Mott MacDonald: Global engineering consultancy with established U.S. transit, energy, and buildings practices. Comparable in MEP design, energy advisory, and program management for public-sector clients.
• AECOM: Global engineering and construction services firm with broad transit, healthcare, higher-education, and energy practices. Competes for the same public-sector CM and engineering RFPs but at a much larger scale and broader portfolio.
• HDR: Architecture, engineering, and consulting firm with strong healthcare, transit, and energy practices. Comparable in MEP and commissioning services for hospitals and universities.
• Parsons Corporation: Engineering and construction management firm with substantial transit, energy, and federal infrastructure practices. Overlaps with Grant & Vine on electrification and CM programs.
• WSP: Global professional services consultancy with significant buildings, transit, energy, and environment practices in the U.S. Overlaps with Grant & Vine in MEP design, energy efficiency, and infrastructure CM engagements.
• Jacobs Solutions: Global engineering and program management firm with strong public-sector, transit, and critical-infrastructure practices. Competes for owner-side CM and commissioning work similar to Grant & Vine's healthcare and government engagements.

Emerging players

• Burns & McDonnell: Employee-owned engineering, architecture, and construction firm with deep power, energy storage, and EV-charging expertise. Increasingly competing for transit electrification and microgrid work that overlaps Grant & Vine's eBus and BESS practice.

Direct peers

• Hill International: Construction management and program management consultancy specializing in complex public-sector, transportation, and energy projects. Closely comparable on owner-side CM, dispute resolution, and program delivery.
• STV: Engineering, architecture, and construction management firm with deep transit and public-sector presence, headquartered in the Northeast and already a partner on NYCT eBus Phase 2 with Grant & Vine. Most directly comparable on MEP, CM, and transit-electrification work.
• LiRo Group: Long Island-based engineering, architecture, and construction management firm focused on public-sector infrastructure, transportation, healthcare, and higher-education clients in the Northeast. Closest comparable in scale, geography, and vertical mix.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/guth-deconzo-cm
• Instagraminstagram.com/grantandvine26

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Guth DeConzo Construction Management, Inc